Datasheet > TPS745-Q1_V06

TPS745-Q1_V06

更新时间： 2024-11-26 02:49:43

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德州仪器 - TI		/
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TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

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TPS745-Q1

SBVS355A –JUNE 2019–REVISED OCTOBER 2019

TPS745-Q1 500-mA LDO With Power-Good in Small Wettable Flank WSON Packages

1 Features

3 Description

The TPS745-Q1 is

a 500-mA ultra-low-dropout

•

AEC-Q100 qualified for automotive applications:

Temperature grade 1: –40°C to +125°C, T_A

regulator (LDO) with power-good functionality. This

device is available in a small 6-pin, 2-mm × 2-mm

and a small 8-pin, 3-mm × 3-mm WSON package

with wettable flanks to facilitate optical inspection.

The TPS745-Q1 consumes low quiescent current and

provides fast line and load transient performance.

–

•

Device junction temperature: –40°C to 150°C

Package:

–

2-mm × 2-mm wettable flank WSON

3-mm × 3-mm wettable flank WSON (preview)

The TPS745-Q1 is

a flexible device for post-

•

Input voltage range: 1.5 V to 6.0 V

Output voltage range:

regulation by supporting an input voltage range from

1.5 V to 6.0 V and an externally adjustable output

range of 0.55 V to 5.5 V. The device also features

fixed output voltages for powering common voltage

rails.

–

Fixed option: 0.65 V to 5.0 V

Adjustable option: 0.55 V to 5.5 V

•

High PSRR: 45 dB at 100 kHz

The TPS745-Q1 has a power-good (PG) output that

monitors the voltage at the feedback pin to indicate

the status of the output voltage. The EN input and PG

output can be used for sequencing multiple power

supplies in the system.

Output accuracy: ±0.85% (25ºC), ±1.5% maximum

Power-good output options:

–

Open-drain and push-pull

Ultra-low dropout:

160 mV (max) at 500 mA (3.3 V_OUT

Stable with a 1-µF or larger capacitor

•

The TPS745-Q1 is stable with small ceramic output

capacitors, allowing for a small overall solution size.

A precision band-gap and error amplifier provides

high accuracy of ±0.85% (max) at 25°C and ±1.5%

(max) over temperature. This device includes

integrated thermal shutdown, current limit, and

undervoltage lockout (UVLO) features. The TPS745-

Q1 has an internal foldback current limit that helps

reduce the thermal dissipation during short-circuit

events.

–

)

•

Low I_Q: 25 µA (typical), 1.5 µA (shutdown)

Active output discharge

Low thermal resistance:

–

DRV (6-pin WSON), R_θJA= 80.3°C/W

DRB (8-pin WSON), R_θJA= 62.0°C/W

(preview)

Device Information⁽¹⁾

2 Applications

PART NUMBER

PACKAGE

BODY SIZE (NOM)

•

Automotive head units

Wettable flank

WSON (6)

2.00 mm × 2.00 mm

Front and rear cameras

Automotive cluster displays

Telematics control units

Medium, short range radar

TPS745-Q1

Wettable flank

WSON (8)⁽²⁾

3.00 mm × 3.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

(2) Preview package.

Typical Application: Fixed Voltage Version

Typical Application: Adjustable Voltage Version

V_IN

V_OUT

V_IN

V_OUT

OUT

C_ff

R_PG*

TPS745-Q1

C_IN

C_OUT

C_IN

C_OUT

R₁

R₂

R_PG*

*Pull-up resistor not required

for push-pull option

GND

*Pull-up resistor not required

for push-pull option

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...45

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TPS74601PDRVR	TI	获取价格	具有电源正常指示和使能功能的 1A、低 IQ、高精度、可调节超低压降稳压器 \| DRV \|
TPS74601PDRVT	TI	获取价格	具有电源正常指示和使能功能的 1A、低 IQ、高精度、可调节超低压降稳压器 \| DRV \|
TPS74601PQWDRBRQ1	TI	获取价格	具有电源正常指示功能的汽车类、1A、低 IQ、高 PSRR、低压降 (LDO) 稳压器 \|
TPS74601PQWDRVRQ1	TI	获取价格	具有电源正常指示功能的汽车类、1A、低 IQ、高 PSRR、低压降 (LDO) 稳压器 \|

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